Specialist in ductile iron castings

Custom manufacturing for castings, forgings and machined parts.


Pole line hardware, polymer insulators, pump housing, valve body, pump&valve parts, pipe fittings, wheel hub, pulley&wheel, fasteners, etc. 
Customized production of castings, forgings and machined parts according to customer’s drawings and requirements.

pump housing

Pump Housing

Valve Body

Pipe Fitting

Clevis Rod

Pole Top Bracket

Polymer Insulators


Roller Chain Link


Wheel Hub

pump housing


pump housing

Pump Casing


Shijiazhuang Doer Metal Product Sales Co., Ltd is a professional manufacturer and supplier of castings and machined parts, Located in Hebei Province, Shijiazhuang City, China, it covers an area of 20,000 square meters, with fixed assets is about 100 million and 120 employees. Doer Metal can offer a wide range of products including but not limited to castings, machining, forgings, stampings, fasteners, insulators, and so on. Doer has served many North American customers for many years and have rich experience to meet various requirements of customers.

Production Process

Sand casting moulding line
Shell mold casting
Investment casting
Tilt Permanent Mold Casting

Learn more

Precision machining:
Turning, milling, drilling, grinding,

CNC machining center,
CNC lathes,
CNC milling machine.

Learn more

Laboratory Equipment

Spectrum analyzer,
Three-coordinate measuring,
Tensile strength machine, Hardness test machine,
Impact testing machine, Metallographic microscope;

Physical Test: Hardness,
Tensile strength, yeild strength, elongation, charpy test;

Chemical Test: C, Si, Mn, S, P, Cr, Ni, Mo,Ti, etc.

learn more

Available Material

Gray iron (ASTM A48, ASTM A126, ASTM A159),
Ductile Iron Castings (ASTM A536),

Ferritic Ductile Iron Castings Suitable for Low-Temperature Service (ASTM A874),

Austempered Ductile Iron Castings (ASTM A897),

Steel&alloy, stainless steel,

Aluminum alloy A356-T6

learn more

Surface Treatment

Hot dip galvanizing,
Powder coating,
Electrophoretic coating,

Hydraulic test
Air pressure test
Anti-rust treatment

learn more

Why Choose Us

We Promise to constantly exceed our customers’ expectations in quality, delivery, and service!


Quality is as important as our life. To make our products reliable, we have employed professional engineers and introduced a series of quality control systems. It is important that we have complete inspection equipment, including a spectrum analyzer, tensile strength machine, hardness machine, microscope, and so on.


Doer Metal has our own factory and we are also the representative of our partner factories. Our team has been in the field for many years, so we have rich experience. At the same time, we constantly update our equipment to improve work efficiency so that we can offer the best price as well as reliable products for you.


Doer Metal has introduced environmental protection equipment to reduce the pollution of the environment, and we upgrade the equipment to reduce the worker’s work intensity. Our commitment to the environment and society gives us support and approval from the government, so we can guarantee the continuity of production and make delivery on time.


Custom Manufacturing,
Product Aided Design,
Product Development,
Product Manufacturing,
Component Assembly,
Quality Control,
Custom Packing,
Delivery Service.

Please do not hesitate to contact us to discuss how we can help you.

new link

Contact us

Doer Metal is a trusted metal products manufacturer working with customers to develop superior custom-manufactured products for a wide variety of industries and applications. Our mission is to provide quality products on time at competitive prices. Do you have any questions for us? We’d love to hear them! Please feel free to contact us and we will get back to you as soon as possible.